Linq is an enterprise messaging API platform built for developers creating conversational applications and AI agents. It enables applications to communicate through native iMessage and RCS while also supporting SMS and voice workflows. The platform exposes messaging features such as reactions, voice messages, images, rich media, typing indicators, and group conversations through developer APIs. Businesses can use Linq to deliver assistants, reservation services, fitness coaching, notifications, customer engagement, and other interactive experiences directly inside users' messaging apps. Developers can get started through documented APIs, command-line tooling, and a sandbox environment designed to simplify integration and testing. Linq is built for high-throughput workloads with low-latency messaging and infrastructure intended to support mission-critical conversational services. Security capabilities include encrypted data transmission and storage along with SOC 2 Type II compliance for organizations with enterprise requirements. The platform also supports AI-focused products that need to give users access to assistants through a familiar texting interface instead of a separate standalone app. Linq is designed for companies that want to make messaging a primary product interface while maintaining the reliability, security, and scale required for production deployments.